Only just rode a Wee for the first time.
Spent over 20 years on big sports tourers (GPZ900s / ZZR1100 / ZX9R's / ZZR1400) before switching to ADV bikes, spent a while watching a GS eat all my money then bought a Super Tenere 1200 after I got tired of funding BMW shareholders.
Anyway, picked up a Wee for the Mrs and had a 55 mile ride home, a nice cross country jaunt with a mix of roads and users thereof.
Was pleasantly surprised by the engines pull, not the arm wrenching off idle grunt of my twelve, but very clean linear power with plenty of mid range between 4k and 7k, never needed to drop more than two gears to get past Arthur and Dorris on their Sunday crawl, fourth gear had enough grunt from this speed and top was flexible enough to leave it there most of the time if you wanted to.
I am about 6'1 and apart from the crap OE screen found it fine, not as roomy in the legs as I expected, but must be at least as good as your current steed, check out this site for looking at room on a bike, you can compare several bikes, put in your own height and leg measurements and even throw a passenger on the back:-
http://cycle-ergo.com/